Koichi Yagi

Tokyo, Japan

Last Updated: 09/26/2026

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Found 105 publications

Capmatinib for High-Level MET-Amplified Metastatic Gastric Cancer Identified by Comprehensive Genomic Profiling: A Case Report and Literature Review.

Capmatinib for High-Level MET-Amplified Metastatic Gastric Cancer Identified by Comprehensive Genomic Profiling: A Case Report and Literature Review.

Journal: Journal of gastrointestinal cancer

Published: June 28, 2026

Site-Specific Genomic Markers Associated with Outcomes of PD-1 Blockade in Gastric and Esophagogastric Junction Cancer: Analysis of Japan's C-CAT Registry.

Site-Specific Genomic Markers Associated with Outcomes of PD-1 Blockade in Gastric and Esophagogastric Junction Cancer: Analysis of Japan's C-CAT Registry.

Journal: BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy

Published: April 05, 2026

Sex- and the age-specific survival impacts of multiple body composition parameters in patients with gastroesophageal cancers.

Sex- and the age-specific survival impacts of multiple body composition parameters in patients with gastroesophageal cancers.

Journal: Surgery today

Published: March 25, 2026

Outcomes of transmediastinal esophagectomy for patients with esophagogastric junction cancers.

Outcomes of transmediastinal esophagectomy for patients with esophagogastric junction cancers.

Journal: International journal of clinical oncology

Published: February 07, 2026

ASO Visual Abstract: Comparison of Short-Term Outcomes Between Robot-Assisted and Conventional Mediastinoscopic Esophagectomies: A Retrospective Study Using Propensity Score Matching.

ASO Visual Abstract: Comparison of Short-Term Outcomes Between Robot-Assisted and Conventional Mediastinoscopic Esophagectomies: A Retrospective Study Using Propensity Score Matching.

Journal: Annals of surgical oncology

Published: February 05, 2026

Impact of the Cachexia Index on survival and recurrence in patients undergoing surgery for gastric cancer.

Impact of the Cachexia Index on survival and recurrence in patients undergoing surgery for gastric cancer.

Journal: Surgery today

Published: January 29, 2026

Conversion surgery after chemoimmunotherapy for esophageal squamous cell carcinoma with gastric intramural metastasis: a case report and the literature review.

Conversion surgery after chemoimmunotherapy for esophageal squamous cell carcinoma with gastric intramural metastasis: a case report and the literature review.

Journal: Journal of surgical case reports

Published: December 11, 2025

Recurrence patterns of robot-assisted mediastinoscopic minimally invasive esophagectomy in patients with thoracic esophageal squamous cell carcinoma.

Recurrence patterns of robot-assisted mediastinoscopic minimally invasive esophagectomy in patients with thoracic esophageal squamous cell carcinoma.

Journal: Esophagus : official journal of the Japan Esophageal Society

Published: November 11, 2025

Essential Updates 2024-2025: Surgical Strategy for Esophageal Cancer Toward a New Paradigm in the Era of Immunotherapy and Personalization.

Essential Updates 2024-2025: Surgical Strategy for Esophageal Cancer Toward a New Paradigm in the Era of Immunotherapy and Personalization.

Journal: Annals of gastroenterological surgery

Published: October 30, 2025

Prognostic Impact of Cachexia Index in Patients Undergoing Surgery for Esophageal Cancer.

Prognostic Impact of Cachexia Index in Patients Undergoing Surgery for Esophageal Cancer.

Journal: Annals of surgical oncology

Published: October 07, 2025

Lymphatic Metastasis Predicts Better Response to Nivolumab in Recurrent or Metastatic Gastric Cancer: Insights from Tumor-Draining Lymph Node Immunity and Long-Term Outcomes.

Lymphatic Metastasis Predicts Better Response to Nivolumab in Recurrent or Metastatic Gastric Cancer: Insights from Tumor-Draining Lymph Node Immunity and Long-Term Outcomes.

Journal: Oncology

Published: September 10, 2025

Comparison of Short-Term Outcomes Between Robot-Assisted and Conventional Mediastinoscopic Esophagectomies: A Retrospective Study Using Propensity Score Matching.

Comparison of Short-Term Outcomes Between Robot-Assisted and Conventional Mediastinoscopic Esophagectomies: A Retrospective Study Using Propensity Score Matching.

Journal: Annals of surgical oncology

Published: August 12, 2025

Showing 1-12 of 105

Last Updated: 09/26/2026